Read Edit View history 双曲余割 shuāngqūyúgē hyperbolic cosecant Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 双曲余割/雙曲餘割 · shuāngqūyúgē · hyperbolic cosecant 2026/03/04 双曲余割 / 雙曲餘割 shuāngqūyúgē hyperbolic cosecant hyperbolic cosecant, i.e. function cosech(x) 双曲余割函数的定义域不包括零。 created sense Mar 4, 2026, 02:25 AM